Home / 145,837,930.20-218,721,903.30-84,294,000.60

Finding the Fourth Proportional to 145,837,930.20, 218,721,903.30 and 84,294,000.60

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Solution

The fourth proportional to 145,837,930.20, 218,721,903.30 and 84,294,000.60 is: 126,420,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837,930.20 : 218,721,903.30 = 84,294,000.60 : x
  2. Step 2: Convert to fraction form
    145,837,930.20/218,721,903.30 = 84,294,000.60/x
  3. Step 3: Cross multiply
    145,837,930.20x = 218,721,903.30 × 84,294,000.60
  4. Step 4: Simplify right side
    145,837,930.20x = 18,436,944,248,003,340
  5. Step 5: Solve for x
    x = 18,436,944,248,003,340/145,837,930.20
  6. Step 6: Final answer
    x = 126,420,775.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.